公开(公告)号：US4770140A

公开(公告)日：1988-09-13

申请号：US920543

申请日：1986-10-20

申请人： Takeo Kiuchi ,  Akimasa Yasuoka

发明人： Takeo Kiuchi ,  Akimasa Yasuoka

IPC分类号： F02D31/00 ,  F02D41/20 ,  F02D41/16

CPC分类号： F02D31/005 ,  F02D31/002 ,  F02D41/20 ,  F02D2011/102 ,  F02D2041/1409 ,  F02D2041/2027 ,  F02D2041/2058 ,  F02D2200/503

摘要： A method and apparatus are provided for controlling the solenoid current of a solenoid valve which controls the amount of suction air in an internal combustion engine. An actual current flowing through the solenoid is detected and a solenoid current control value is calculated as a function of engine operating conditions. A corrected solenoid current control value is determined as a function of the solenoid current control value and a feedback control term is calculated as a function of the difference between the corrected solenoid current control value and the actual solenoid current. An initial value for the feedback control term is determined as a function of an integration term which forms part of the feedback control term. A pulse duration signal is determined as a function of the corrected solenoid current value and an output pulse duration signal is calculated as a function of the pulse duration signal and the feedback control term. In another aspect, a predetermined current control value is used as the corrected solenoid current control value when the engine speed is above a predetermined value. In still a further aspect, the output pulse duration is corrected as a function of battery voltage.

摘要翻译： 提供了一种用于控制控制内燃机中的吸入空气量的电磁阀的电磁线圈的方法和装置。 检测流过螺线管的实际电流，并根据发动机运行条件计算螺线管电流控制值。 作为电磁线圈电流控制值的函数确定校正的电磁线圈电流控制值，并且根据校正的电磁线圈电流控制值和实际电磁线圈电流之间的差值来计算反馈控制项。 反馈控制项的初始值被确定为形成反馈控制项的一部分的积分项的函数。 根据校正的电磁线圈电流值确定脉冲持续时间信号，并根据脉冲持续时间信号和反馈控制项计算输出脉冲持续时间信号。 在另一方面，当发动机转速高于预定值时，使用预定电流控制值作为校正螺线管电流控制值。 在另一方面，输出脉冲持续时间被校正为电池电压的函数。

公开(公告)号：US4637362A

公开(公告)日：1987-01-20

申请号：US717117

申请日：1985-03-28

申请人： Akimasa Yasuoka ,  Takahiro Iwata ,  Takeo Kiuchi

发明人： Akimasa Yasuoka ,  Takahiro Iwata ,  Takeo Kiuchi

IPC分类号： F02D41/28 ,  F02D41/00 ,  F02D41/04 ,  F02D41/26 ,  F02D41/34 ,  G01L23/24 ,  F02M5/02

CPC分类号： F02D41/26 ,  F02D41/045

摘要： A method for controlling fuel supply of an internal combustion engine includes steps of sampling a vacuum level within an intake pipe of the engine and a value corresponding to engine rotational speed at predetermined sampling intervals, generating a subtraction value .DELTA.M.sub.e between a latest sampled value M.sub.en of the value corresponding to the engine rotational speed and a sampled value M.sub.en-m sampled predetermined number of cycles before, and correcting a latest sampled value P.sub.BAn of the pressure within the intake pipe in accordance with the subtraction value .DELTA.M.sub.e. The fuel supply amount is determined according to a corrected value P.sub.BA of the pressure within the intake pipe of the engine obtained by the above correction process.

摘要翻译： 一种用于控制内燃机的燃料供给的方法包括以下步骤：以预定的采样间隔对发动机的进气管内的真空度进行采样，并以与发动机转速对应的值进行采样，生成最新采样值Men之间的减法值DELTA Me 对应于发动机转速的值和采样值Men-m，并且根据减法值DELTA Me校正进气管内的压力的最新采样值PBAn。 根据通过上述校正处理获得的发动机的进气管内的压力的校正值PBA来确定燃料供给量。

公开(公告)号：US4702210A

公开(公告)日：1987-10-27

申请号：US871738

申请日：1986-06-09

申请人： Akimasa Yasuoka ,  Takeo Kiuchi

发明人： Akimasa Yasuoka ,  Takeo Kiuchi

IPC分类号： F02D41/16 ,  F02D31/00 ,  F02D41/00 ,  F02D41/06 ,  F02D41/24 ,  F02M3/07

CPC分类号： F02D41/2425 ,  F02D31/005 ,  F02D41/06 ,  F02D2011/102 ,  F02D2041/1409 ,  F02D2041/1422

摘要： Feedback control of the opening area of a bypass which is provided in parallel with a throttle valve of an engine is conducted immediately after the cranking is completed, based on the deviation of existing RPM from the target RPM which is memorized as the function of the engine temperature in advance, to maintain the idling RPM of the engine at optimum level in the state of after-cranking without being affected by the possible change in viscosity of engine oil, the variations in temperatures of the ambient air and the engine cooling water, the load of engine, and so on. The control signals for the feedback control are learned when the existing RPM are substantially equal to the target RPM and stored in a memory. One of the learned values is read out for fixing a control signal in the beginning of the state of after-cranking so that the RPM of the engine is smoothly approximated to the target RPM when the engine shifts from the during-cranking state to the idling state.

摘要翻译： 基于与作为发动机的功能存储的目标RPM的现有RPM的偏差，在启动完成之后立即进行与发动机的节流阀并联设置的旁路的开口面积的反馈控制 预先将发动机的空转RPM维持在起动状态下的最佳水平，而不受发动机机油粘度的变化，环境空气和发动机冷却水的温度变化的影响 发动机负载等。 当现有RPM基本上等于目标RPM并存储在存储器中时，将学习反馈控制的控制信号。 读出学习值中的一个，用于在起动状态开始时固定控制信号，使得当发动机从起动状态转变到空转时发动机的RPM平稳地近似于目标RPM 州。

公开(公告)号：US4649877A

公开(公告)日：1987-03-17

申请号：US838376

申请日：1986-03-11

申请人： Akimasa Yasuoka ,  Takeo Kiuchi

发明人： Akimasa Yasuoka ,  Takeo Kiuchi

IPC分类号： F02D41/04 ,  F02D31/00 ,  F02D41/00 ,  F02D41/08 ,  F02D41/16 ,  F02M3/00 ,  F02M3/07 ,  F02M23/04

CPC分类号： F02D31/005 ,  F02D2011/102

摘要： An intake air quantity control method for an internal combustion engine at idle. A supplementary air quantity to be supplied to the engine through a first auxiliary air passage bypassing an engine throttle valve is controlled by a first control valve on the basis of a basic value of a control amount corresponding to the difference between actual engine speed and desired idling speed. A supplementary air quantity to be supplied to the engine through a second auxiliary air passage is controlled by a second control valve in response to engine temperature. A first correction value is calculated based upon detected atmospheric pressure encompassing the engine, and a second correction value based upon detected engine temperature and atmospheric pressure, respectively. The basic value of the control amount is corrected by means of the first and second correction values, and the first control valve is driven according to the corrected control amount basic value. Preferably, the second correction value is calculated from a value of the control amount corresponding to a supplementary air quantity estimated to be supplied through the second control valve at the detected engine temperature and from the first correction value based upon the detected atmospheric pressure.

摘要翻译： 用于内燃机空转的进气量控制方法。 通过旁路发动机节气门的第一辅助空气通路向发动机供给的辅助空气量由第一控制阀基于与实际发动机转速和期望空转之间的差对应的控制量的基本值来控制 速度。 通过第二辅助空气通道供应到发动机的补充空气量由第二控制阀根据发动机温度控制。 基于检测到的包围发动机的大气压力和基于检测到的发动机温度和大气压力的第二校正值来计算第一校正值。 通过第一和第二校正值来校正控制量的基本值，并且根据校正的控制量基础值来驱动第一控制阀。 优选地，根据检测到的发动机温度下的估计为通过第二控制阀提供的补充空气量的控制量和基于检测到的大气压的第一校正值来计算第二校正值。

公开(公告)号：US4646699A

公开(公告)日：1987-03-03

申请号：US736581

申请日：1985-05-21

申请人： Akimasa Yasuoka ,  Takeo Kiuchi

发明人： Akimasa Yasuoka ,  Takeo Kiuchi

IPC分类号： F02D41/00 ,  F02D41/14 ,  F02M51/00

CPC分类号： F02D41/1488

摘要： A method for controlling air-fuel ratio of the mixture to be supplied to the engine detects whether or not the amount of the fuel to be supplied to the engine is greater than a reference amount. A feedback control in which the air-fuel ratio is corrected according to an oxygen concentration in the exhaust gas is performed when the amount of the fuel to be supplied to the engine is equal to or smaller than the reference level, while an open loop control in which the air-fuel ratio of the mixture is determined irrespective of the oxygen concentration is performed if the amount of the fuel to be supplied to the engine is greater than the reference level. The reference amount is changed depending on the engine rotational speed so as to eliminate the overlap of a range of the fuel increment control and a range of the feedback control and greatly improve the driveability of the engine during high load operating conditions of the engine.

摘要翻译： 用于控制供给到发动机的混合物的空燃比的方法，检测供给到发动机的燃料的量是否大于基准量。 当向发动机供给的燃料量等于或小于参考水平时，执行根据排气中的氧气浓度来校正空燃比的反馈控制，而开环控制 如果要供应到发动机的燃料量大于参考水平，则执行混合物的空燃比而与氧浓度无关。 参考量根据发动机转速而改变，以消除燃料增量控制的范围和反馈控制的范围的重叠，并且在发动机的高负载运行条件期间大大提高发动机的驾驶性能。

公开(公告)号：US4760823A

公开(公告)日：1988-08-02

申请号：US865692

申请日：1986-05-22

申请人： Akimasa Yasuoka ,  Takeo Kiuchi ,  Takahiro Iwata

发明人： Akimasa Yasuoka ,  Takeo Kiuchi ,  Takahiro Iwata

IPC分类号： F02D31/00 ,  F02D41/08 ,  F02D41/16

CPC分类号： F02D41/083 ,  F02D31/003 ,  F02D2041/1422 ,  Y10T477/68

摘要： An addition correction term is added to a feedback control term when an internal combustion engine is idling, a control valve is under feedback control, and an automatic transmission is in drive range (D range). The addition correction term is calculated by multiplying a predetermined constant value by at least one of several correction coefficients which are based on RPM and temperature of the engine and vehicle speed. A learnt value is calculated based on intake manifold pressure when the internal combustion engine is in idling condition, the control valve is under feedback control, and the automatic transmission is in disengagement condition, for example, neutral range (N range). When the automatic transmission is turned into D range, the existing manifold pressure is detected and the addition correction term is calculated based on the difference between the learnt value and the detected manifold pressure.

摘要翻译： 当内燃机怠速时，控制阀处于反馈控制状态，并且自动变速器处于驱动范围（D档）范围内时，将附加校正项加到反馈控制项中。 通过将预定常数值乘以基于RPM和发动机温度和车辆速度的多个校正系数中的至少一个来计算加法校正项。 当内燃机处于空转状态时，控制阀处于反馈控制状态，并且自动变速器处于分离状态，例如空档范围（N档）时，基于进气歧管压力计算学习值。 当自动变速器变为D档时，检测现有的歧管压力，并根据学习值和检测到的歧管压力之间的差值计算加法校正项。

公开(公告)号：US4745899A

公开(公告)日：1988-05-24

申请号：US920390

申请日：1986-10-20

申请人： Takeo Kiuchi ,  Akimasa Yasuoka

发明人： Takeo Kiuchi ,  Akimasa Yasuoka

IPC分类号： F02D31/00 ,  F02D41/00 ,  F02D41/16 ,  F02D41/20

CPC分类号： F02D31/002 ,  F02D31/005 ,  F02D41/20 ,  F02D2041/2027 ,  F02D2041/2058 ,  F02D2041/2065

摘要： A method and apparatus are provided for controlling the solenoid current of a solenoid valve which controls the amount of suction air in an internal combustion engine. The actual solenoid current flowing through the solenoid is detected and a solenoid current control valve is calculated as a function of engine operating conditions. A corrected solenoid current control value is determined as a function of the solenoid current control value and a pulse duration signal is determined as a function of the corrected solenoid current control value. A feedback control term is calculated as a function of the actual solenoid current and the corrected solenoid current control value. Further, a temperature corresponding to the solenoid temperature is detected and a temperature correction value is generated corresponding thereto. A pulse duration output signal is calculated for controlling the operation of said solenoid as a function of the pulse duration signal, the feedback control term, and the temperature compensation value.

摘要翻译： 提供了一种用于控制控制内燃机中的吸入空气量的电磁阀的电磁线圈的方法和装置。 检测流过螺线管的实际电磁线圈电流，并根据发动机工作条件计算电磁线圈电流控制阀。 作为电磁线圈电流控制值的函数确定校正的电磁线圈电流控制值，并且根据校正的电磁线圈电流控制值确定脉冲持续时间信号。 根据实际的电磁线圈电流和校正的电磁线圈电流控制值来计算反馈控制项。 此外，检测对应于螺线管温度的温度，并对应于其产生温度校正值。 计算脉冲持续时间输出信号作为脉冲持续时间信号，反馈控制项和温度补偿值的函数来控制所述螺线管的操作。

公开(公告)号：US4633839A

公开(公告)日：1987-01-06

申请号：US715294

申请日：1985-03-25

申请人： Akimasa Yasuoka ,  Takahiro Iwata ,  Takeo Kiuchi

发明人： Akimasa Yasuoka ,  Takahiro Iwata ,  Takeo Kiuchi

IPC分类号： F02D31/00 ,  F02D41/00 ,  F02D41/08 ,  F02D41/16 ,  F02D41/28 ,  F02D41/32 ,  F02B33/00

CPC分类号： F02D31/001 ,  F02D41/08 ,  F02D41/16 ,  F02D41/32

摘要： A fuel supply of an internal combustion engine is controlled by sampling a vacuum level within an intake pipe of the engine and a value corresponding to the engine rotational speed at predetermined sampling intervals, subsequently correcting a latest sampled value P.sub.BAn of the vacuum level with a latest sampled value M.sub.en of the value corresponding to the engine rotational speed to produce a corrected value P.sub.BA, and then determining fuel supply amount in accordance with the corrected value P.sub.BA. By determining the fuel supply amount in this way, hunting of the engine rotational speed especially during idling operation of the engine is prevented.

摘要翻译： 内燃机的燃料供给通过以规定的取样间隔对发动机的进气管内的真空度和对应于发动机转速的值进行取样来进行控制，然后用最新的方式校正真空水平的最新采样值PBAn 对应于发动机转速的值的采样值Men产生校正值PBA，然后根据校正值PBA确定燃料供给量。 通过以这种方式确定燃料供给量，特别是在发动机怠速运转期间，能够防止发动机转速的振荡。

公开(公告)号：US4819596A

公开(公告)日：1989-04-11

申请号：US155676

申请日：1988-02-16

申请人： Akimasa Yasuoka ,  Takeo Kiuchi ,  Takahiro Iwata

发明人： Akimasa Yasuoka ,  Takeo Kiuchi ,  Takahiro Iwata

IPC分类号： F02D31/00 ,  F02D41/08 ,  F02D41/16

CPC分类号： F02D41/083 ,  F02D31/003 ,  F02D2041/1422 ,  Y10T477/68

摘要： An addition correction term is added to a feedback control term when an internal combustion engine is idling, a control valve is under feedback control, and an automatic transmission is in drive range (D range). The addition correction term is calculated by multiplying a predetermined constant value by at least one of several correction coefficients which are based on RPM and temperatures of the engine and vehicle speed. A learnt value is calculated based on intake manifold pressure when the internal combustion engine is in idling condition, the control valve is under feedback control, and the automatic transmission is in disengagement condition, for example, neutral range (N range). When the automatic transmission is turned into D range the existing manifold pressure is detected and the addition correction term is calculated based on the difference between the learnt value and the detected manifold pressure.

公开(公告)号：US4635607A

公开(公告)日：1987-01-13

申请号：US837924

申请日：1986-03-10

申请人： Akimasa Yasuoka ,  Takeo Kiuchi

发明人： Akimasa Yasuoka ,  Takeo Kiuchi

IPC分类号： F02D41/00 ,  F02D41/12 ,  F02D41/22 ,  F02B3/00

CPC分类号： F02D41/221 ,  F02D41/123

摘要： An apparatus is provided for controlling the supply of fuel to internal combustion engine having a control valve for controlling the amount of air to be supplied to an engine piston downstream of a throttle valve. The apparatus comprises a detector for detecting any disorder in the amount of air and for providing a disorder indicating signal. An engine speed sensor detects the rotating speed of the engine and a throttle opening sensor detects the degree of opening of the throttle valve. A fuel cut circuit is coupled to the disorder detector, the engine speed sensor, and the throttle opening sensor for storing a fuel cut area defined by the degree of throttle opening and the rotating speed of the engine. The fuel cut circuit produces, in response to the disorder indicating signal, a fuel cut command signal when the outputs of the engine speed sensor and the throttle opening sensor indicate that the engine is operating within the fuel cut area.

摘要翻译： 提供一种用于控制向具有控制阀的内燃机供给燃料的装置，该控制阀用于控制向节气门下游的发动机活塞供给的空气量。 该装置包括用于检测空气量中的任何紊乱并用于提供无序指示信号的检测器。 发动机转速传感器检测发动机的转速，节气门开度传感器检测节流阀的开度。 燃料切断电路连接到无级检测器，发动机转速传感器和节气门开度传感器，用于存储由节气门开度和发动机的转速限定的燃料切断区域。 当发动机速度传感器和节气门开度传感器的输出指示发动机在燃料切断区域内运行时，燃料切断电路响应于无序指示信号而产生燃料切断命令信号。